Malicious PDF — malware analysis report

Static analysis result for SHA-256 a17e870f6e54031d…

MALICIOUS

PDF

37.0 KB Created: 2021-06-23 06:16:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 5ef3bf0bad9e45d4abb0268b018732c4 SHA-1: 5ece8c3442f52cd40ee58da74da3cd61fd5fe9e4 SHA-256: a17e870f6e54031d1926be4967bf8aab3048935312d0ed141f42f0e91721fee8
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-severity heuristic indicating it links to a 'free generator / game hack' lure, specifically for Roblox. The embedded URL http://netcdn.co/app/431946152/roblox-free-followers-bot-2021-game-hack likely serves as a redirector to a malicious site or download. Although no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to trick the user into downloading a payload or visiting a compromised site, aligning with spearphishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.co/app/431946152/roblox-free-followers-bot-2021-game-hack PDF link annotation
    • https://unsla.uns.ac.id:443/pgsd/repository/free-roblox-exploit-2021-no-virus_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/erased-citizen-roblox-hack-how_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/wahoogaming-co-free-robux_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/comment-mettre-un-cheat-code-roblox_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/roblox-hack-kill_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/roblox-person_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/free-promo-codes-for-roblox-2021_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/give-free-robux_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/free-robux-2021_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/earn-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/coin-master-free-spins-haktuts_GM406889139.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/anime-free-roblox_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/hack-coin-master-apk_GM406889139.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/free-coins-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/free-roblox-hair-codes_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/free-coin-master-stuff_GM406889139.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/how-to-hack-someones-minecraft-account_GM479516143.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/free-robux-cheat-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003775.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3775 22808 bytes
SHA-256: bddfbe37eac20ebccddf5ae0991955862156a11a65999d2ba12def83ce071947
font_01_sfnt_off00006aa9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AA9 19320 bytes
SHA-256: 43d9c2afac9cd09c305b9862554d11ff2195c19886d627761fa874663fd652ef

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